James Holmes, condemned to spend the rest of his life in a Colorado prison, was allegedly assaulted there by a fellow inmate, a state corrections spokeswoman said Saturday.
The incident occurred earlier this month at the Colorado State Penitentiary, which Holmes' calls home given his multiple life terms for carrying out the Aurora movie theater massacre that killed 12 and wounded 70.
Holmes, wearing a helmet, gas mask and ballistic gear, tossed tear gas into Theater 9 of the Century 16 megaplex in Aurora during the first minutes of a midnight showing of "The Dark Knight Rises" in July 2012.
This month's alleged assault on him comes less than two months after he was sentenced to one life term for each of the 12 people he killed , plus 3,318 years for the attempted murders of those he wounded and for rigging his apartment with explosives.